論文 - 田島 卓也
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Remnant-Preserved Single-Bundle Anterior Cruciate Ligament Augmentation in Multi-ligamentous Knee Reconstruction. 査読あり
Tajima T*, Yamaguchi N, Morita Y, Yokoe T, Nagasawa M, Ota T, Kawagoe S, Nakamura Y, Chosa E.
Journal of Knee Surgery 2022年6月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Prospective Comparisons of Femoral Tunnel Enlargement With 3 Different Postoperative Immobilization Periods After Double-Bundle Anterior Cruciate Ligament Reconstruction With Hamstring Grafts. 査読あり
Tajima T, Chosa E, Kawahara K, Yamaguchi N.
Arthroscopy 864 - 870 2014年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Arthroscopic anatomical double-bundle anterior cruciate ligament reconstruction for Asian patient using a bone-patellar tendon-bone and gracilis tendon composite autograft: a technical note 招待あり 査読あり
Takuya Tajima,Etsuo Chosa,Keitarou Yamamoto,Nami Yamaguchi
Sports Medicine, Arthroscopy,Rehabilitation, Therapy &Technology 4 ( 9 ) 2012年3月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Spectator medicine at an international mega sports event: Rugby World Cup 2019 in Japan 査読あり
Tajima T., Takazawa Y., Yamada M., Moriya T., Sato H., Higashihara J., Toyama Y., Chosa E., Nakamura A., Kono I.
Environmental Health and Preventive Medicine 25 ( 1 ) 72 2020年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Environmental Health and Preventive Medicine
© 2020, The Author(s). Background: The Rugby World Cup (RWC) is one of the biggest international mega sports events in the world. This study was conducted to identify and evaluate the volume, nature, and severity of spectator medical care in the stadiums of 12 venues across Japan during RWC 2019. Method: This was a retrospective review of medical records from spectator medical rooms of 45 official matches of RWC 2019 between September 20 and November 2, 2019. All patients in the stadium who visited the spectator medical room and were transferred to a hospital were included. The wet bulb globe temperature (WBGT) value at the kick-off time of each match, the number of visits to the spectator medical room, and the number of transfers to a hospital were reviewed and analyzed. The patient presentation rate (PPR) was calculated per 10,000 attendees. Severity categories were defined as mild or severe. Mild cases were considered non-life threatening requiring minimal medical intervention, and severe cases required transport to a hospital. Result: The total number of visits to the spectator medical room was 449 with a PPR of 2.63. Most cases (91.5%) were mild in severity. The PPR was significantly higher for the matches held with a WBGT over 25 °C than for the matches under 21 °C (PPR 4.27 vs 2.04, p = 0.04). Thirty-eight cases were transferred to a hospital by ambulance; the PPR was 0.22. The most common reasons for transfer to the hospital were heat illness and fracture/dislocation, at a rate of 15.8% each. The incidence rate of cardiopulmonary arrest per 10,000 attendees was 0.0059 during RWC 2019. Conclusion: Preparation and provision of appropriate medical service for spectators is a key factor for mass-gathering events. During RWC 2019, the majority (91.5%) of patients who sought medical attention did so for minor complaints, which were easily assessed and managed. On the other hand, a higher WBGT situation contributes significantly to an increased PPR (< 21 versus > 25, 2.04 versus 4.27, p = 0.04). Careful medical preparation, management, and development of public education programs for higher WBGT situations will be required in the future for similar international mega sports events.
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Clinical and Radiographic Outcomes of Double-Bundle Anterior Cruciate Ligament Reconstruction for Asian Patients with Bone-Patellar Tendon-Bone and Gracilis Tendon Grafts: A Matched-Control Comparison. 査読あり
Tajima T, Yamaguchi N, Morita Y, Nagasawa M, Ota T, Nakamura Y, Yokoe T, Chosa E
The journal of knee surgery 2020年5月
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Remnant-preserving, selective single-bundle augmentation of the anterior cruciate ligament using a bone–patellar tendon–bone autograft: 査読あり
Takuya Tajima , Etsuo Chosa, Nami Yamaguchi, Noboru Taniguchi, Yasuyuki Ishida
The Knee 32 554 - 558 2016年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Comprehensive safety management and assessment at rugby football competitions 査読あり
Tajima T, Chosa E, Kawahara K, Nakamura Y, Yoshikawa D, Yamaguchi N, Kashiwagi T
International Journal of Sports Medicine 35 ( 12 ) 1012 - 1016 2014年11月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Hemoglobin stimulates the expression of matrix metalloprotenases, MMP-2 and MMP-9 by synovial cells: a possible cause of joint damage after intra-articular hemorrhage. 査読あり
Takuya Tajima, Etsuo Yoshida, Atsushi Yamashita, Sayuri Ohmura, Yasushi Tomitaka, Masahiko Sugiki, Yujiro Asada, Masugi Maruyama
Journal of Orthopaedic Research 23 891 - 898 2005年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Head Injury Assessment in the Elite Level Rugby Union in Japan: Review of 3 Seasons. 査読あり
Tajima T*, Ota O, Nagayama M, Takahashi M, Yamada M, Ishiyama N, Yoshida I, Takemura M, Hara K, Akama T, Mitsumori N, Higashihara J, Toyama Y, Furuya M, Chosa E, Nakamura A.
International Journal of Sports Medicine 2022年6月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
DOI： 10.1055/a-1810-6509.
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Tajima T., Yamaguchi N., Nagasawa M., Morita Y., Nakamura Y., Chosa E.
BMC Musculoskeletal Disorders 20 ( 1 ) 274 2019年6月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：BMC Musculoskeletal Disorders
© 2019 The Author(s). Background: Bone tunnel enlargement following primary anterior cruciate ligament (ACL) reconstruction with soft tissue graft might be a severe disadvantage for revision surgery. The postoperative rehabilitation protocol including the non-weight-bearing periods were different depending on the surgeon or institute. To determine the relationship between femoral bone tunnel enlargement and the postoperative non-weight-bearing period after double-bundle ACL reconstruction with hamstring grafts. Methods: Forty-two patients who underwent primary double-bundle ACL reconstruction with hamstring grafts were divided into two postoperative non-weight-bearing protocol groups: 1-week non-weight-bearing postoperatively (group A, n = 19); and 2-week non-weight-bearing (group B, n = 18). Five cases were excluded due to additional knee injury, pregnancy, and lost to follow-up. Bone tunnel enlargement was evaluated by computed digital radiographs (anteroposterior (A-P) and lateral views) taken on the first postoperative day and at 12 months. Each tunnel diameter was shown as a percentage to the maximum joint width of the proximal tibia in the A-P view, or a percentage of the maximum diameter of the patella in the lateral view. To determine the incidence of tunnel enlargement, percentage diameter changes of more than 10% were defined as an enlarged tunnel. The magnitude of tunnel enlargement and the standard clinical evaluation were also evaluated. Results: There were no significant differences between groups in the incidences of anteromedial and posterolateral bone tunnel enlargement, both in the A-P and lateral views (2 × 2 Chi-squared test). The magnitude of femoral posterolateral bone tunnel enlargement was significantly greater in group A in the A-P view (p = 0.01) and lateral view (p = 0.03) (Mann Whitney U-test). Twelve months after surgery, the Lysholm score and Tegner activity level scale were not significantly different between the groups. Conclusions: This prospective, clinical and radiographical study showed that early weight-bearing protocol after double-bundle ACL reconstruction with hamstring grafts might have the potential risk of significant postoperative femoral bone tunnel enlargement of the posterolateral bundle. There was no significant difference in clinical outcomes by postoperative non-weight-bearing period. To reduce and prevent the femoral bone tunnel enlargement, the comprehensive management could be considered and required to establish the suitable early stage rehabilitation protocol after surgery. Trial registration: Trial registration number; UMIN000036212. Scientific title: Prospective comparisons of femoral tunnel enlargement with two different postoperative non weight bearing periods after double-bundle anterior cruciate ligament reconstruction with hamstring grafts. Registered date: 15 Mar 2019 (retrospectively registered).
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Hemoglobin stimulates the expression of ADAMTS-5 and ADAMTS-9 by synovial cells; a possible cause of articular cartilage damage after intra-articular hemorrhage 招待あり 査読あり
Tajima T., Sekimoto T., Yamaguchi N., Taniguchi N., Kurogi S., Maruyama M., Chosa E.
BMC Musculoskeletal Disorders 18 ( 1 ) 449 - 457 2017年11月
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Effect of genu recurvatum on the anterior cruciate ligament-deficient knee during gait 査読あり
Katsuhiro Kawahara,Tomohisa Sekimoto,Shinji Watanabe,Keitaro Yamamoto,Takuya Tajima,Nami Yamaguchi, Etsuo Chosa
Knee Surgery, Sports Traumatology, Arthroscopy 20 ( 8 ) 1479 - 1487 2012年8月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Anterior cruciate ligament reconstruction in a patient with Athetoid cerebral palsy 査読あり
Takuya Tajima, Etsuo Chosa, Keitarou Yamamoto, Nami Yamaguchi, Shinji Watanabe
Sports Medicine, Arthroscopy,Rehabilitation, Therapy &Technology 36 ( 4 ) 2012年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Yokoe T, Tajima T, Yamaguchi N, Nagasawa M, Ota T, Morita Y, Chosa E
BMJ open 11 ( 1 ) e042188 2021年1月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：BMJ Open
Objectives Medical examinations for adult elite athletes are performed all over the world, however, no studies in the relevant English literature have reported on orthopaedic medical examinations for young amateur athletes. The purpose of this study was to report the results of orthopaedic medical examinations of the spine and lower extremities in young amateur athletes. Methods This repeated cross-sectional study from 2014 to 2018 included a total of 323 young amateur athletes (age, 12-18 years) who were active in one of the following four sports: boxing, canoeing, weightlifting and track and field. The orthopaedic medical examination consisted of six assessments (physical examinations, the generalised joint laxity, muscle and joint tightness, static alignment and muscle volume of the lower extremities and the medial longitudinal arch of the foot). Questions regarding pain in the spine and lower extremities were also performed. Results Among 323 young amateur athletes, 17 (5.3%) had received orthopaedic treatment at the time of the medical examination, with spondylolysis being the most common cause (29.4%, 5/17). Among 306 young athletes who had not received orthopaedic treatment, 61 (19.9%) had at least one positive finding in physical examinations or had pain in the spine or lower extremities. Anterior drawer test of the ankle and Kemp test for the spine accounted for 34% and 28% of positive findings, respectively. Low back pain and knee pain accounted for 58% and 16% of pain, respectively. Conclusions The present study showed that approximately one-fifth of young amateur athletes who had not received orthopaedic treatment had pain in the spine and lower extremities and positive findings in physical examinations that may require orthopaedic treatments. In addition to the early detection of injuries, orthopaedic medical examinations for young amateur athletes provide an opportunity to educate such athletes.
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Comparison of symptomatic spondylolysis in young soccer and baseball players 査読あり
Yokoe T., Tajima T., Sugimura H., Kubo S., Nozaki S., Yamaguchi N., Morita Y., Chosa E.
Journal of Orthopaedic Surgery and Research 15 ( 1 ) 378 2020年9月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Orthopaedic Surgery and Research
© 2020 The Author(s). Background: Spondylolysis is the main cause of low back pain (LBP) in young athletes. There are few studies analyzing the difference of spondylolysis among young athletes with different sports activities. The purpose of this study was to compare the clinical factors and distribution of the lesions of spondylolysis on magnetic resonance imaging (MRI) scans in young soccer and baseball players with symptomatic spondylolysis. Methods: The medical records of 267 young athletes aged 7 to 18 years old who underwent MRI to evaluate the cause of LBP between 2017 and 2020 were retrospectively reviewed to identify patients with spondylolysis. Of the young athletes with symptomatic spondylolysis, clinical factors and MRI findings in soccer and baseball players were retrospectively evaluated. The clinical factors were age, sex, interval from onset of LBP to MRI, and side of the dominant leg in the sports field. MRI findings included number, lumbar level, and side of the lesions. Results: A total of 33 soccer players (mean age, 15.4 ± 1.4 years) and 49 baseball players (mean age, 15.4 ± 1.6 years) with symptomatic spondylolysis were enrolled. All patients were male. No significant differences were noted in age and the interval from onset of LBP to MRI between the groups. Soccer players had greater numbers of multiple (p < 0.001) and bilateral (p < 0.001) lesions than baseball players. The dominant side of the hand for pitching or batting was correlated with the contralateral-side lesions in baseball players (p = 0.001). Conclusions: The distribution of the lesions of spondylolysis differed in young soccer and baseball players. Pitching or batting with the dominant-side hand would be associated with contralateral-side lesions in baseball players. Sports-specific movements and the side of the dominant leg should be considered when treating young athletes with symptomatic spondylolysis.
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ラグビー選手における頚椎退行変性の予防-頚部体幹コアトレーニング導入の効果- 査読あり
田島卓也、帖佐悦男、河原勝博、山口奈美、中村嘉宏
日本整形外科スポーツ医学会雑誌 34 ( 1 ) 80 - 84 2014年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Yamaguchi Y., Lee D., Nagai T., Funamoto T., Tajima T., Chosa E.
Journal of Medical Internet Research 22 ( 8 ) e18684 2020年8月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Medical Internet Research
© 2020 Journal of Medical Internet Research. All rights reserved. Background: Most people currently use the internet to obtain information about many subjects, including health information. Thus, medical associations need to provide accurate medical information websites. Although medical associations have their own patient education pages, it is not clear if these websites actually show up in search results. Objective: The aim of this study was to evaluate how well medical associations function as online information providers by searching for information about musculoskeletal-related pain online and determining the ranking of the websites of medical associations. Methods: We conducted a Google search for frequently searched keywords. Keywords were extracted using Google Ads Keyword Planner associated with "pain" relevant to the musculoskeletal system from June 2016 to December 2019. The top 20 search queries were extracted and searched using the Google search engine in Japan and the United States. Results: The number of suggested queries for "pain" provided by Google Ads Keyword Planner was 930 in the United States and 2400 in Japan. Among the top 20 musculoskeletal-related pain queries chosen, the probability that the medical associations' websites would appear in the top 10 results was 30% in the United States and 45% in Japan. In five queries each, the associations' websites did not appear among the top 100 results. No significant difference was found in the rank of the associations' website search results (P=.28). Conclusions: To provide accurate medical information to patients, it is essential to undertake effective measures for search engine optimization. For orthopedic associations, it is necessary that their websites should appear among the top search results.
DOI： 10.2196/18684
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Yokoe T, Tajima T, Yamaguchi N, Morita Y, Chosa E
The journal of knee surgery 34 ( 11 ) 1237 - 1242 2020年2月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Knee Surgery
Atopic dermatitis (AD), sometimes referred to as eczema, is a common skin disease, and skin barrier dysfunction and immunological disorders are well recognized. However, surgical wound complications after orthopaedic surgery in patients with AD have not been described. This study aimed to report four patients with AD who developed foreign body reactions to FiberWire sutures with or without surgical wound infection (SSI) after knee cruciate ligament reconstruction (CLR). The mean age was 19.8 (range, 16-25) years, and patients 1 and 3 underwent reconstructions of the posterior and anterior cruciate ligament, respectively. At a mean of 7.5 (range, 4-10) weeks postoperatively, discharge from the surgical wound at the tibial side of the fixed graft was identified. All patients were treated with continuous saline lavage and antibiotics; however, their wounds did not heal. Second-look arthroscopy and hardware removal were performed at a mean 12.2 (range, 9-15) months postoperatively. Proliferated granulation tissue surrounding the FiberWire was identified. Intraoperative wound cultures were negative in three of the four patients. Histological examination of the tissues adjacent to the FiberWire revealed a foreign body reaction. All wounds healed immediately after the second surgery. In addition to SSI, foreign body reactions are more likely to occur in patients with AD than in those without AD. Preoperative management of AD by dermatologists and consideration of appropriate suture materials are mandatory to reduce surgical wound complications after knee CLR in patients with AD.
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Elective one-stage all four-ligament reconstruction after open knee dislocation: A case report 査読あり
Yokoe T., Tajima T., Yamaguchi N., Chosa E.
Journal of Orthopaedic Science 27 ( 3 ) 743 - 749 2019年9月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Orthopaedic Science
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Copy number loss in the region of the ASPN gene in patients with acetabular Dysplasia 査読あり
Sekimoto T., Ishii M., Emi M., Kurogi S., Funamoto T., Yonezawa Y., Tajima T., Sakamoto T., Hamada H., Chosa E.
Bone and Joint Research 6 ( 7 ) 439 - 445 2017年7月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Bone and Joint Research
© 2017 Cao et al. Objectives: We have previously investigated an association between the genome copy number variation (CNV) and acetabular dysplasia (AD). Hip osteoarthritis is associated with a genetic polymorphism in the aspartic acid repeat in the N-terminal region of the asporin (ASPN) gene; therefore, the present study aimed to investigate whether the CNV of ASPN is involved in the pathogenesis of AD. Methods: Acetabular coverage of all subjects was evaluated using radiological findings (Sharp angle, centre-edge (CE) angle, acetabular roof obliquity (ARO) angle, and minimum joint space width). Genomic DNA was extracted from peripheral blood leukocytes. Agilent's regiontargeted high-density oligonucleotide tiling microarray was used to analyse 64 female AD patients and 32 female control subjects. All statistical analyses were performed using EZR software (Fisher's exact probability test, Pearson's correlation test, and Student's t-test). Results: CNV analysis of the ASPN gene revealed a copy number loss in significantly more AD patients (9/64) than control subjects (0/32; p = 0.0212). This loss occurred within a 60 kb region on 9q22.31, which harbours the gene for ASPN. The mean radiological parameters of these AD patients were significantly worse than those of the other subjects (Sharp angle, p = 0.0056; CE angle, p = 0.0076; ARO angle, p = 0.0065), and all nine patients required operative therapy such as total hip arthroplasty or pelvic osteotomy. Moreover, six of these nine patients had a history of operative or conservative therapy for developmental dysplasia of the hip. Conclusions: Copy number loss within the region harbouring the ASPN gene on 9q22.31 is associated with severe AD. A copy number loss in the ASPN gene region may play a role in the aetiology of severe AD.